how to setup a simulink model for PLL

[gavin168]

pll simulink

Dear all,

I want to do behavior simulation for PLL. I got a model at simulink demos as the attchment. would you have a look? how to do the PM simulation by this model? If it can not do it, what kind of simulink model for PLL can do the PM simulation? would you help me? thank you

Regards,

Gavin

 

[RFDave]

simulink pll

How were you planning on doing the phase modulation? How would you do it in hardware?

Dave
www.keystoneradio.com

 

[gavin168]

simulink pll model

Hi, RFdave, I want to do behavior simulation of PLL. It is said simulink model can do PM simulation, But i don't know how to do it.

 

[RFDave]

pll simulink model

Hi:

Well, to start with, do you have that simulink model running without modulation? Once you to, why don't you look through Dean Banerjee's PLL book (@ National Semiconductor's website) to figure out how to do phase modulation in a PLL. Once you have a working PLL model in Simulink and know how you phase modulate a PLL then you are practically finished.

Dave

 

[gavin168]

phase locked loop simulink

To RFDave

Do you mean we should figure out the LPF accordingly to the formular at the Dean Banerjee's book?

Because I am interested at that how simulink to do the PM simulation. I want to pick it up.

 

[master_picengineer]

pll simulink model

Hi All,
I am in the same design phase than gavin168. If you are familiar with all pll parameters and mathematical expression you can determine coeficients of the filter, vco ....You have only to change the provided expression of the component in the matlab demo.

Added after 34 minutes:

Gavin168
Check this tutorial

https://www.mathworks.com/matlabcentral/fileexchange/loadFile.do?objectId=14868&objectType=file

 

[RFDave]

simulink phase locked loop

Well, there are a couple of way's to introduce phase modulation into the loop, and they interact with the loop filter design. There is a section in Dean's book that covers this, look for two port modulation

Dave

 

[joe_chen]

pll model in simulink

open the loop